Bobby Accessibility Report

URL:, April 20, 1999 3:37:19 PM EDT
Bobby Version: 3.0b3, build: 002
Browser Compatibility: HTML 4.0
Click on the error messages below to find out more information.

Accessibility Errors

This page has not been rated for accessibility. You must choose the "Accessibility Evaluation and Rating" option to get an accessibility rating.

The following section contains 1 accessibility problem that should be fixed in order to make this page accessible to people with disabilities.
  1. Provide alternative text for all images
    Line 241: <center><a href=""><img src=""></a></center>

Accessibility Recommendations

This section contains a list of accessibility recommendations that you should fix in order to improve accessibility. Accessibility recommendations do not affect the Bobby Approved rating.
  1. Use the LANG attribute to identify the language of the text

  2. Specify a logical tab order among form controls
    Line 79: <INPUT TYPE=submit VALUE="Find Course">
    Line 118: <INPUT TYPE=submit VALUE="Find Instructor">

Accessibility Questions

This section contains a list of accessibility questions. Bobby is unable to determine if these questions are satisfied so it is important for you to check each item carefully.
  1. If this table contains data, have you identified headers for the table rows and columns?
    Line 24: <TABLE width=498 BORDER=0>
    Line 34: <TABLE BORDER=1 WIDTH=550>
    Line 37: <TABLE BORDER=0 WIDTH=350>
    Line 52: <TABLE BORDER=0>
    Line 55: <TABLE BORDER=0 WIDTH=225>
    Line 101: <TABLE BORDER=0>
    Line 104: <TABLE BORDER=0 WIDTH=225>
    Line 141: <TABLE BORDER=0 WIDTH=150>
    Line 183: <p><TABLE BORDER=0 WIDTH=550>
    Line 187: <TABLE BORDER=0>
    Line 199: <TABLE BORDER=0>
    Line 220: <TABLE BORDER=0>
    Line 243: <table><tr><th colspan=2><a name=whatis>What is EReserve?</th></tr>

  2. Does this image convey important information beyond what is in its alternative text description?
    Line 27: <IMG SRC="" ALT="EReserve" ALIGN="CENTER">
    Lines 191-195: <img width=128 height=68 <img src="" alt="Reserve Reading List Database" border=0></A>
    Lines 203-207: <img width=44 height=44 src="" alt="SCP Home Icon" border=0></A>
    Line 225: <img border=0 src="" alt="VT Library Home"></a>
    Line 241: <center><a href=""><img src=""></a></center>

Accessibility Tips

This section contains a list of accessibility tips that you should review. Please note that there are some aspects of page design that are important to accessibility but can not be tested automatically by Bobby. Some of these may appear below in the accessibility tips section.
  1. Encode list structures and list items properly

  2. Group related controls and label each group

  3. Make sure that headings are nested properly

  4. Provide abbreviations for lengthy row or column labels

  5. Style sheets should be used to control layout and presentation wherever possible

  6. Make sure that text, image, and background colors contrast well and that color is not used as the sole means of conveying important information

  7. Use the ABBR and ACRONYM elements to denote abbreviations and acronyms

  8. Provide summaries for tables of data

  9. If you can't figure out any other way to make a page accessible, construct an alternate version of the page which is accessible

  10. Avoid ASCII art. Replace it with an image and alternative text

  11. Considered adding keyboard shortcuts to important links

  12. Make sure that document structure is supported by the proper use of structural elements

Browser Compatibility Errors.

The following section contains a list of 4 browser compatibility errors. Browser compatibility errors help to determine when HTML tags and their attributes are not compatible with certain web browsers or HTML specifications. Problems here do not mean that this page is necessarily inaccessible. Browser compatibility errors do not affect the accessibility rating of a page.
  1. Required attribute ALT is missing from tag IMG for browser(s): HTML 4.0
    Line 241: <center><a href=""><img src=""></a></center>

  2. Unknown attribute NAME in element FORM for browser(s): HTML 4.0
    Lines 48-50: <FORM NAME="CourseSearch" METHOD=POST ACTION="">

  3. Unknown attribute
    Lines 191-195: <img width=128 height=68 <img src="" alt="Reserve Reading List Database" border=0></A>

  4. Unknown element name SCHOLAR.LIB.VT.EDU/IMAGES/1998/ER98-300.GIF for browser(s): HTML 4.0
    Line 185: <>

Download Time

The following three column table gives download time statistics for the images, applets, and objects on this page. The first column contains the URL of each item, the second column the item size in kilobytes, and the third column the approximate download time for each item when using a 28,800 baud modem. At the end of the report, an arbitrary delay of 0.5 seconds is added for each file to account for slow-downs caused by HTTP connection times.

Time (seconds) 7.87 K 2.19 3.47 K 0.96 45.86 K 12.74 0.52 K 0.14 1.82 K 0.51 1.67 K 0.46
61.20 K
HTTP Request Delays

Total + Delays